2JZM:
reference: Structural refinement of insecticidal plant proteinase inhibitors from Nicotiana alata., Schirra HJ, Anderson MA, Craik DJ, Protein Pept Lett. 2008;15(9):903-9. PMID: 18991765

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).